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Cagliari

$727+ Cheap flights from St. Louis (STL) to Cagliari (CAG)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/6. Fares are subject to change and may not be available on all flights or dates of travel.
STL — CAG
feb. 11 — feb. 181
mié. 2/11
mié. 2/18
1 adult, Economy
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2. Select your favorite providers

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Cheap flight deals from St. Louis to Cagliari

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Cagliari (CAG). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated enero 12, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$1,016
(Ovago)
Provider with most accurate pricing for Lambert-St Louis-Cagliari Elmas flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-Cagliari Elmas flights.
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From Lambert-St Louis to Cagliari Elmas
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Find flight deals from St. Louis to Cagliari

Cheapest flights from St. Louis to Cagliari
Explore the most affordable flight options available from St. Louis to Cagliari. Find the lowest fares from popular airlines and budget airlines, with prices last updated on enero 12, 2026.

This FlightHub deal was found by Cheapflights users on 1/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/66:49 pm
STL
-
CAG
2 stops15h 56m
Lufthansa
mié. 10/146:35 pm
CAG
-
STL
2 stops27h 46m
Lufthansa
Deal found 1/12$727
This FlightHub deal was found by Cheapflights users on 1/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/66:49 pm
STL
-
CAG
2 stops15h 56m
Lufthansa
jue. 10/156:35 pm
CAG
-
STL
2 stops25h 50m
Lufthansa
Deal found 1/12$738
This Booking.com deal was found by Cheapflights users on 1/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/54:05 pm
STL
-
CAG
2 stops56h 35m
Multiple Airlines
mar. 10/136:35 pm
CAG
-
STL
2 stops27h 46m
Multiple Airlines
Deal found 1/12$740
This Delta deal was found by Cheapflights users on 1/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/55:45 pm
STL
-
CAG
2 stops15h 40m
Delta
mar. 10/135:05 pm
CAG
-
STL
2 stops36h 58m
Delta
Deal found 1/12$780
This FlightHub deal was found by Cheapflights users on 1/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/56:49 pm
STL
-
CAG
2 stops15h 56m
Lufthansa
mar. 10/136:35 pm
CAG
-
STL
2 stops28h 51m
Lufthansa
Deal found 1/12$792
This FlightHub deal was found by Cheapflights users on 1/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/56:49 pm
STL
-
CAG
2 stops15h 56m
Lufthansa
mié. 10/146:35 pm
CAG
-
STL
2 stops27h 46m
Lufthansa
Deal found 1/12$796
This FlightHub deal was found by Cheapflights users on 1/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/56:49 pm
STL
-
CAG
2 stops15h 56m
Lufthansa
jue. 10/156:35 pm
CAG
-
STL
2 stops25h 50m
Lufthansa
Deal found 1/12$807
This FlightHub deal was found by Cheapflights users on 1/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/71:27 pm
STL
-
CAG
2 stops21h 43m
Lufthansa
mié. 10/146:35 pm
CAG
-
STL
2 stops27h 46m
Lufthansa
Deal found 1/12$808
This KAYAK deal was found by Cheapflights users on 1/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/46:49 pm
STL
-
CAG
2 stops15h 56m
Lufthansa
mié. 10/146:35 pm
CAG
-
STL
2 stops27h 46m
Lufthansa
Deal found 1/12$809
This KAYAK deal was found by Cheapflights users on 1/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/61:27 pm
STL
-
CAG
2 stops21h 18m
Lufthansa
lun. 10/126:35 pm
CAG
-
STL
2 stops51h 46m
Lufthansa
Deal found 1/12$815
This FlightHub deal was found by Cheapflights users on 1/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/71:27 pm
STL
-
CAG
2 stops21h 43m
Lufthansa
jue. 10/156:35 pm
CAG
-
STL
2 stops25h 50m
Lufthansa
Deal found 1/12$819

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Cagliari that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated enero 12, 2026.
Use the filters below to find and compare flights from St. Louis to Cagliari that are best for you.

Fly from

St. Louis

Fly to

Cagliari

Route

Depart

Return

Price

St. LouisCagliari

STL - CAG

STLCAG

Lambert-St Louis

jue. 4/2

12:28 pm-4:25 pm

2 stops20h 57m

Cagliari Elmas

sáb. 4/18

5:05 pm-8:38 pm

2 stops34h 33m

$820

St. LouisCagliari

STL - CAG

STLCAG

Lambert-St Louis

mié. 5/20

7:30 am-5:45 pm

2 stops27h 15m

Cagliari Elmas

mié. 5/27

6:35 pm-8:05 pm

2 stops56h 30m

$1,090

St. LouisCagliari

STL - CAG

STLCAG

Lambert-St Louis

mié. 7/1

8:25 am-5:45 pm

2 stops26h 20m

Cagliari Elmas

mar. 7/14

6:35 pm-11:25 pm

2 stops35h 50m

$1,092

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/12

Compare providers for flights from St. Louis to Cagliari

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Cagliari in January.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on St. Louis-Cagliari flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on St. Louis-Cagliari flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from St. Louis-Cagliari flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-Cagliari flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Cagliari flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from St. Louis to Cagliari

Have a flexible travel schedule? Discover the best time to fly to Cagliari from St. Louis with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Cagliari. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from St. Louis to Cagliari?

    Departing from St. Louis to Cagliari will take you 20h 57m. The distance from St. Louis to Cagliari is about 5021 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from St. Louis to Cagliari that include hotel bookings?

    Yes. In addition to deals on St. Louis to Cagliari flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Cagliari?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Cagliari.

  • Can I find deals for business class flights from St. Louis to Cagliari?

    Yes. Cheapflights offers flight deals from St. Louis to Cagliari by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Oristano

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